OUTLINE: This is a dose escalation study. Patients are sequentially enrolled on 1 of 3 treatment arms. Each treatment arm has 3 groups. Arm I: Patients receive Ad2/MART-1v2 vaccine and Ad2/gp100v2 vaccine intradermally (ID) at the lowest dose level once every three weeks for either 6 or 15 weeks depending on assignment. Arm II: Patients receive Ad2/gp100v2 vaccine and Ad2/MART-1v2 vaccine ID at the mid-range dose level once every three weeks for either 6 or 15 weeks depending on assignment. Arm III: Patients receive Ad2/MART-1v2 vaccine and Ad2/gp100v2 vaccine ID at the highest dose level once every three weeks for either 6 or 15 weeks depending on assignment. Cohorts of 3-6 patients receive escalating doses of Ad2/MART-1v2 and/or Ad2/gp100v2 vaccines in each arm until the maximum tolerated dose (MTD) is reached. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose-limiting toxicity. Patients are followed at 3 months, 6 months, and 1 year after completion of treatment.